import java.awt.event.*;
import javax.swing.*;
public class MyListener extends JFrame 
{
  //create a JTextField
  JTextField textField = new JTextField("Press enter");
  //constructor
  public MyListener() 
  {
    //add the listener on JTextField
    textField.addActionListener(new ActionListener() {
      //capture the event on JTextField
      public void actionPerformed(ActionEvent e) {
        //get and display the contents of JTextField in the console
        System.out.println("Text=" + textField.getText());
      }
    });
    //add JTextField to the frame
    getContentPane().add(textField);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setSize(300,100);
  }
  public static void main(String[] args) {
    new MyListener().setVisible(true);
  }
}